<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2224-5421</journal-id>
<journal-title><![CDATA[Revista Cubana de Química]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cub Quim]]></abbrev-journal-title>
<issn>2224-5421</issn>
<publisher>
<publisher-name><![CDATA[Ediciones UO, Universidad de Oriente]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2224-54212021000300291</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Radiotrazador orgánico de 99mTc perspectivo para aplicaciones en la Industria del Petróleo]]></article-title>
<article-title xml:lang="en"><![CDATA[A prospective 99mTc organic radiotracer for applications in the Oil Industry]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Batista-Roche]]></surname>
<given-names><![CDATA[Jorge Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Superior de Tecnologías y Ciencias Aplicadas (InSTEC)  ]]></institution>
<addr-line><![CDATA[Universidad de La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>33</volume>
<numero>3</numero>
<fpage>291</fpage>
<lpage>304</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2224-54212021000300291&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2224-54212021000300291&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2224-54212021000300291&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Los radiotrazadores tienen suma importancia en la industria petrolera. Se ha usado la extracción con trioctilamina (TOA) y tributilfosfato (TBF) para la obtención de un radiotrazador en fase orgánica, a partir del eluido del generador de 99Mo/99mTc. En el presente trabajo se estudió la influencia del método de separación de fases en la extracción del pertecnetato de tecnecio 99 metaestable (). Se comprobó que la centrifugación es necesaria para obtener una adecuada separación. Se optimizó la formulación TBF-TOA-ciclohexano para la extracción de una actividad de  de 600 MBq, perspectiva para aplicaciones a escala industrial. Adicionalmente, con la formulación 7,53 %TBF-0,77%TOA-ciclohexano se logró el mayor rendimiento de la extracción (96,86 %). Se construyó y evaluó una instalación de laboratorio que simula un separador gravitacional horizontal continuo (petróleo-agua de capa).]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Radiotracers are very important in the oil industry. The extraction with trioctylamine (TOA) and tributylphosphate (TBF) has been used to obtain a radiotracer in organic phase from the eluent of the 99Mo/99mTc generator. In this work we studied the influence of the phase separation method in the extraction of technetium 99 metastable pertechnetate (). Centrifugation was necessary to obtain adequate separation. The formulation TBF-TOA-cyclohexane was optimized for the extraction of 600 MBq activity of , perspective for industrial scale applications. Additionally, with 7.53%TBF-0.77%TOA-cyclohexane formulation, the highest extraction yield (96.86%) was achieved. A laboratory installation that simulates a continuous horizontal gravitational separator (oil-water layer), was constructed and evaluated.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[radiotrazador]]></kwd>
<kwd lng="es"><![CDATA[grado de extracción]]></kwd>
<kwd lng="es"><![CDATA[separador gravitacional]]></kwd>
<kwd lng="es"><![CDATA[flujo multifásico]]></kwd>
<kwd lng="en"><![CDATA[radiotracer]]></kwd>
<kwd lng="en"><![CDATA[extraction performance]]></kwd>
<kwd lng="en"><![CDATA[gravitational separator]]></kwd>
<kwd lng="en"><![CDATA[multiphase flow]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[LOPCI]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[CASTELLO]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[MORENGHI]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cost-effectiveness of second-line diagnostic investigations in patients included in the DANTE trial]]></article-title>
<source><![CDATA[Nuclear Medicine Communications]]></source>
<year>2019</year>
<volume>40</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>508-16</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[DOMINGUEZ]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[ABREU A]]></surname>
<given-names><![CDATA[BORROTO J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mixing characterization in batch reactors using radiotracer techniques]]></article-title>
<source><![CDATA[Journal of Radioanalytical and Nuclear Chemistry]]></source>
<year>1999</year>
<volume>241</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>337-40</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[DOMINGUEZ]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[BORROTO]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[PÉREZ]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[HERNÁNDEZ]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Use of the 99mTcO4- and the Rhodamine-WT as Tracers and the Mathematical Convolution Procedure to Establish the Alarm Model In the Almendares River]]></article-title>
<source><![CDATA[Journal of Radioanalytical and Nuclear Chemistry]]></source>
<year>2004</year>
<volume>260</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>417-20</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[BORROTO]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[DOMÍNGUEZ]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[20 años de investigaciones y aplicaciones en Cuba de los radiotrazadores y el escaneo en la industria y el medioambiente]]></article-title>
<source><![CDATA[Nucleus]]></source>
<year>2015</year>
<numero>58</numero>
<issue>58</issue>
<page-range>20-7</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[DOMÍNGUEZ]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[LEÓN]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[GAMBOA]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[ABREU]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[BORROTO]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of TBP, TOA and MEK as extractants to obtain 99mTc radiotracers in organic phase from 99Mo/99mTc generator]]></article-title>
<source><![CDATA[Nucleus]]></source>
<year>2012</year>
<numero>51</numero>
<issue>51</issue>
<page-range>26-3</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[KASBAN]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Laboratory experiments and modeling for industrial radiotracer applications]]></article-title>
<source><![CDATA[Applied Radiation and Isotopes]]></source>
<year>2010</year>
<numero>68</numero>
<issue>68</issue>
<page-range>1049-56</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="book">
<collab>IAEA</collab>
<source><![CDATA[Application of radiotracer techniques for interwell studies]]></source>
<year>2012</year>
<numero>3</numero>
<issue>3</issue>
<page-range>1-248</page-range><publisher-loc><![CDATA[Vienna ]]></publisher-loc>
<publisher-name><![CDATA[IAEA Radiation technology series]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="">
<source><![CDATA[Guidebook on Application of Radiotracer Techniques for Interwell Studies. Radiation Technology Series No.3, International Atomic Energy Agency]]></source>
<year>2012</year>
</nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[STAVSETRA]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[FURE]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[HAUGAN]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[BJORNSTAD]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Development of an oil tracer labelled with 137mBa]]></article-title>
<source><![CDATA[The European Physical Journal Conferences]]></source>
<year>2013</year>
</nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="">
<collab>IAEA</collab>
<source><![CDATA[Leak detection in heat exchangers and underground pipelines using radiotracers]]></source>
<year>2009</year>
<page-range>1-77</page-range><publisher-loc><![CDATA[Vienna ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="">
<source><![CDATA[Guidebook on Radiotracers applications in industry. Safety Reports Series No. 423, International Atomic Energy Agency]]></source>
<year>2004</year>
</nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[WETCHAGARUN]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[PETCHRAK]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[TIPPAYAKUL]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Preliminary study of the use of radiotracers for leak detection in industrial applications]]></article-title>
<source><![CDATA[Journal of Physics: Conference Series]]></source>
<year>2018</year>
<volume>611</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-6</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ORTEGA]]></surname>
<given-names><![CDATA[M.S.]]></given-names>
</name>
<name>
<surname><![CDATA[DOMÍNGUEZ]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[MARTÍNEZ]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[BORROTO]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Extracción del 99mTcO4- con la mezcla 30% tributilfosfato -16% trioctilamina / ciclohexano. Evaluación del radiotrazador obtenido]]></article-title>
<source><![CDATA[CENIC]]></source>
<year>2014</year>
<numero>45</numero>
<issue>45</issue>
<page-range>60-5</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[STREETER]]></surname>
<given-names><![CDATA[V. L.]]></given-names>
</name>
<name>
<surname><![CDATA[WYLIE]]></surname>
<given-names><![CDATA[E.B.]]></given-names>
</name>
<name>
<surname><![CDATA[BEDFORD]]></surname>
<given-names><![CDATA[K. W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Mecánica de los Fluidos]]></source>
<year>1999</year>
<edition>Novena</edition>
<publisher-loc><![CDATA[Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Ed. Emma Ariza H]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[GRIFFITH]]></surname>
<given-names><![CDATA[M.J.]]></given-names>
</name>
<name>
<surname><![CDATA[FLORES]]></surname>
<given-names><![CDATA[J.P.]]></given-names>
</name>
<name>
<surname><![CDATA[CUESTA]]></surname>
<given-names><![CDATA[B.J.]]></given-names>
</name>
<name>
<surname><![CDATA[DÁMERA]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<name>
<surname><![CDATA[RAMOS]]></surname>
<given-names><![CDATA[E.K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Características hidrodinámicas de clarificadores de alta velocidad de sedimentación por el método de los radiotrazadores]]></article-title>
<source><![CDATA[Nucleus]]></source>
<year>2005</year>
<numero>37</numero>
<issue>37</issue>
</nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[JACOB]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Novel pase-transition behavior near liquid/liquid critical points ofaqueous solutions: Formation of a third phase at the interface]]></article-title>
<source><![CDATA[J. Phys. Chem]]></source>
<year>2001</year>
<numero>3</numero>
<issue>3</issue>
<page-range>829-31</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ESPI]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<source><![CDATA[Métodos de separación y concentración]]></source>
<year>2002</year>
<edition>2</edition>
<publisher-loc><![CDATA[La Habana ]]></publisher-loc>
<publisher-name><![CDATA[Editorial Félix Varela]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[WATANABE]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[HASHIMOTO]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Solvent extraction of Technetium in urine with TBP]]></article-title>
<source><![CDATA[J. Radioanal. Nucl. Chem. (Japan]]></source>
<year>1995</year>
<volume>201</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>361-70</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[OLÁN]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Propuesta para el diseño de un separador bifásico a baja presión como uso didáctico para el área de ingeniería petrolera]]></source>
<year>2018</year>
<page-range>1-112</page-range><publisher-loc><![CDATA[Villahermosa, Tabasco ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[KASBAN]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Laboratory experiments and modeling for industrial radiotracer applications]]></article-title>
<source><![CDATA[Applied Radiation and Isotopes]]></source>
<year>2010</year>
<volume>68</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1049-56</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
